best available copv



BEST AVAILABLE com March 15,1927. 1,620,726

A. S. HOWELL MOTION PICTURE CAMERA ANDv THE LIKE Filed Sept. 13, 1923 '7 Sheets-Sheet 1 1 Elli@ t yv- MMALM,

BEST AVAILABLE com March 15 1927.

A. s. HOWELL MOTION PICTURE CAMERA AND THIS LIKE Filed Sept. 15. 1925 7 Sheets-Sheet 2 BEST AVAILABLE COF` i* 1,620,726 March 15 1927' A. s. HOWELL MOTION PICTURE CAMERA AND THE LIKE Filed Sept. 13,1923 '7 Sheets-Shut 3 BEST AVAILABLE COP\ March 15, '1921. 1,620,726

A. s. HOWELL MOTION PICTURE CAMERA AND THE LIKE Filed Sept. 13, 1923 '7 Sheets-Sheet 4 BEST AVAILABLE com 1,620,726 March 15 1927' Ns. HowELL MOTION PICTURE CAMERA AND THE LIKE Filed Sept. 13. 1923 7 Sheets-Sheet 5 99 @A MM 'ah/M,

BESTAVA'LABLE com March 15,1927. y 1,620,726

A. S. HOWELL MOTION PICTURE CAMERA AND THE LIKE FledfSept. 15, 1923 '7 Sheets-Sheet 5 Bf- MqQ/M uw,...

BEST AVAILABLE ColD` j 1,620,72 March 15 1927. A. s. HOWELL 6 MOTION PICTURE CAMERA AND THE LIKE Filed Sept. 13. 1923l '7 Sheets-Sheet 7 M r flfllll/ll//lllll Patented Mar. 15, 1927.

UNITED STATES BEST AVAILABLE coz3` 1,620,726 PATENT OFFICE.

ALBERT S. HOWELL, OF CHICAGO, ILLINOIS, ASSIGNOR T0 BELL & HOWELL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MOTION -PICTURE CAMERA AND THE LIKE.

Application filed September 13, 1923. Serial No. 662,478.

My invention relates particularly to spring-motor driven motion picture cameras although not limited to this use alone.

The main features of the invention relate to the provision of a motion picture camera with a view toward lightness, compactness, ease and convenience of operation, simplicity and eiiciency, convenience in assembly, and accessibility of operating parts.

With these features in view my invention consists in certain features of novelty in the construction, combination, and arrange-ment of parts by which the said features and certain other features are effected all as fully described with reference to the accompanying drawings and more particularly pointed out in the claims.

In thesaidv drawings- Figure 1 is a front view of a motion picture camera embodying the features of my invention.

Figure 2 is a side view of the same.

Figure 3 is a view similar to Fig.v 2 with the cover removed.

Figure 4 is an inside face view of the cover.

Figure 5 is an enlarged view similar to Fig. .3, showing parts in different positions and with one 'of the film spoolsremoved and with parts broken away .and sectioned f Figure 6 is a partial view similar to Fig. 5 with parts removed,'l parts broken away and parts in section.

Fifrure 7 is .an enlarged section on the line Figure 8 is` a rear view ofthe front piece assembly hereinafter described.

Figure 9 is an enlarged section on the line 9-9 of Fig. 7*.

Figurei 10 is an inside face view of the removable frame assembly hereinafter described.

Figure 1l is a section taken on the line 11-11 ofFig. 6 with parts broken away.

Figure 12 is an enlarged partial section taken on the line 12-12 of Fig. 6.

Like characters of reference indicate like parts in the several views.

Referringto the drawings, the enclosing casing of the camera is open at one side and has the portion 1 adjacent the op-en side vertically elongated above .and below the adjoining portion 2 of the casing which is circular in form and disposed centrally with respect to the elongated portion. rlhe elongation of the portion 1 forms vertical wall portions 3 above and below the portion 2 at the inside of the portion 1 forn'iing an intermediate outwardly facing surface within the casing and disposed in parallelism with the open side of the casing. See Figs. 1, 6, and 11. The casing is provided with a centrally disposed transverse circular portion 4 at the front of the casing extending forwardly from and merging with the portions 1 and 2 and having its circular opening outwardly shouldered and ydisposed on a rearwardly and forwardly extending axis and communicating with the enclosure formed by the portions 1 and 2. The opening of the portion 4 is closed by a circular front piece 5 detachably secured in the frontend of this opening against the shoulder of the opening by means of headed screws 6. See Figs. 1, 7, and 9. The side opening of the casing is closed by 'a cover 7 releasably secured to the casing by a locking mechanism 8 on the inside 'thereof cooperating with undercut grooves 9 in the casing in an obvious inanner, the locking mechanism being operated to lock and release by operating members 11 on the exterior of the cover.4

p A frame, comprising inner and outer plates l12 and 13 detachably secured together in spaced parallelism in a usual manner by .l

means-of spacing studs 14 and headed screws 15 and having the outer plate 13 extending vertically above and below the inner plate, is disposed within the casing with the inner plate disposed within the portion 2 of the casing and with the outer plate secured against the aforementioned surface within the casing, formed by the wall portions 3, by means of headed screws 16 whereby the frame is detachably secured within the casing inwardly of and in parallelism with the open side thereof, the frame being removable through said open side. See Figs. 5, 6, 7 and 11.

A pair of vertically spaced transversely disposed revoluble film spool spindles 17 are carried by the frame and extend outwardly therefrom toward the cover for the removable mounting thereon within the casing of respective film spools 18 in adjacent vertically spaced edgewise alinement between the 'frame and cover, the upper and lower ends of portion 1 of the casing being semicircular and conforming with the spools. The structure of the spool mount surfaces lll of the spindles and the spindle openings of the reels constitutes a part of the subject matter described and claimed in my eo-pending application for improvement in reel and spindle mount therefor,v til-ed March 8, 1923, Serial No. 623,689, and being clearly shown in the drawings herein requires no description except that the spools are rotatably lined on respective spindles and are limited as to inward movement on the spindles and are removable over the outer ends oli' the spindles when the cover is removed. `When the cover is locked on the casing inwardly extending lugs 19 on parts of the locking mechanism 8 limit movement of the spools outwardly. The upper spindle 17, which carries the feed spool, is carried on the frame by means ot a headed stud screw 21 screwthrcaded into the inner end ot this spindle iu axial alinement therewith and engaging for rotation coaxial holes. in the inner and outer plates 12 and with its shank and head respectively and a. compression spring 22" encircling the shank of the screw stud andv abutting its head and the outer plate 13 with its opposite ends to maintain the inner end ot' this spindle against the outer plate and to retard rotation of the spindle to prevent film wound on the feed spool Jfrom unwinding ol its Yown accord. ee Fig. 11. The lower'spind-le 1'? which carries the rewind spool is carried n the frame in the following manner. A headed screw stud is screwthreadedinto the inner end of this spindle inv axial alinement therewith. A bored gear hub 24, the bore ol' which is reduced adjacent its outer end, as shown at 25, engages for rotation a portion ot' the' head of this screw stud with the inner end of its bore and the shank of this screw stud with the reduced portion ot' its bore. The exterior surface of this hub is reduced at its outer end forming an outwardly faei-ng shoulder' 26 and' this reduced end is engaged for rotation in a hole in thc outer plate 13. The head ot the screw stud 23 is enga-ged for rotation in a hole in the inner plate 12, which hole is coaxial with the hole engaged by the gear hub 24. The hub 24 extends between the plates 12 and 13 and abuts the inner plate with its inner end and the outer plato with the shoulder 26, and the outer cud ofthe hub abuts the inner end of said lower spindle. and a compression spring 27 cncirirlcs the shank of the screw stud and abuts the head thereof and the shoulder formed b3: the reduced' bore portion ot' the huh with its opposite ends and prevents outward movement of the screw stud and-,forum a trictional driving connection between the gear liu-b and spindle as is usual in the drii-'ing ol' rewind spindles.

bracket 23 consisting of a. vertically extending plat'e' having oil'set feet secured to the outer plated?) extends between the plates l2 and 155madjacent parallelism with the er: l

-ST AVAILABLE Op outer plate nea-r the iront of e ca'sing. See Figs. 6 and 12. A pair of transversely disposed vertically spaced parallel studs 29 are secured to the bracket 28 in front of the plane of the axes of the film spools 18 and extend outwardly therefrom through relatively large openings 31 in the outer plate. A. pair of bored duplicate constant leed lilm sprockets 32 are revolubly mounted on respective studs 29 and project outwardly from the outer plate in film feeding alinement with the lilm spools 18, headed screws 325 screwthreaded' into the outer ends of re'- spective studs 29' preventing outward movement ot' the sprockets on the Studis.v The sprockets have duplicate gears" 34 formed on their inner ends which exten-d inwardly of the outer plate 13, and a shaft 35 is journaled in the plates 12 and 13T on' a' transverse axis between the studs 2t) and passes through a relatively large hole in the bracket 28- and has a gear 36' formed thereon between the plates 12 and 13 and' adjacent'the'outerplate 121' which gear meshes with thev gears 3st of the sprockets whereby the sprockets are driven in the sam-e direction and at the same speed. The enlargement of the shalt' 35 forming the gear is shouldered at its inner end and is engaged in the boreof an' inwardly faced crown; toothed' gear 37 which clamped thereagainstby a bore` internally screwthreaded gear' 38 screwthreaded on' the rear end of the shaft 35'y whereby thev gears 36, 37, and 3S are secured together, all-three of these gears bein" disposed between the plates 12 and 13. ce Fig. 12.

The inner' plate 12 is'provided"-Witrhl a centrally disposed bore therethroughI in which is journaled a concentrically bored hub member 39 see Fig. 117 which extends from both sides of' the inner plate, andl a hollow winding spindle 41 isl journ-aled in the bore of said hub member and extends outwardly from both 'ends of the same'. ninwardly projecting bearing stud 42 isl secured t'o the outer plate andi engages' the boreof thelspindle 41 whereby the end o' the spindle adjacent the outer plate-is supported; fori-otation7 and the other end of this spindle issupported for rotation in a bore inthe side of the casing opposite the open si'de thereof as designated at 43. This bore renders the spindle 4'1 accessible for winding andthe bore o-t' the spindle is pmvidedwitli an intermediately disposed clutch formation 44: tt'or engagernentwith a usual winding key, not' shown', for rotating the spindle. The spindle 41 is provided' with an exterior cylindrical flange 45 extending trom the spindle-atl the outer end of the hub member 39 over the hub member in spaced relation therewith towardl the inner pla-te. and a coiled power.springv 46 i'sdisposed on the outsi'de'o'f the inner pla-te 12 and, surrounding the-flange has-its inner end secu-red thereto and its outer end secured to the frame by means of a stud 47 secured to the inner plate 12, see Fig. 10. A spring brake coil 48 is disposed in the space between the hub member 39 and the flange 45 of the spindle and has one end bent axially, as shown at 49 in Fig. 11, and engaged in a slot ot' the hub member to secure the brake coil to the hub member and is tensioned against the liange to toi-m a one way driving connection between the hub member and the winding spindle whereby to permit independent rotation of the spindle in the direction to wind the spring. A stop geaizil is secured to the end of the winding spindle adjacent the outer plate 13 and meshes with a stop gear 52 rotatably mounted and carried on the outer plate inwardly thereof by means ot' a headed stud 53 secured to the outer plate and extending inwardlyT therefrom, a coiled vspring 54 encircling the shank of the stud and abutting the headofthe stud and the -gear 52- to normally maintain this gear against the outer plate and meshing with the gear 51 and permitting` axial movement of the gear 52 to disengage-from the gea-r 51 for setting the stop gearing. rThis stop gearing functions to limit both thewinding and unwinding of the power spring.

rlhe power spring "device including the winding spindle 41 the hub member 39 and the power spring 46 is disposed on a transverse axis, and driving from the power spring vdevice is eli'ected by a multiplying gear train including gears carried bythe frame between the plates 12 and 13 and disposed on transverse axes. See Figs. 6, 7, 11,

and 12. These gears include a large primary spur gear 55 secuiedto the hub member 39 and meshing with av small spur pinion 56 disposed on a` transverse axis between the plates 12 and 13 and mounted on a transverse shat't. 57 extending between the plates and rotatably mounted on the plates. A large spur gear 58 is secured with the pinion 56 on the shaft 57 and meshes with the gear 38 whereby the shaft 35 is driven from the power spring device.

Axial movement of the hub member 39 outwardly ot the inner plate 12 is limited by the gear 55, and a split ring 59, see Fig. 11, is engaged in an exterior groove on the winding spindle and engages the inner end of the hub member.' to limit. axial movement of the hub member inwardly of the innei` plate and at the same time limits movement of the winding spindle outwardly 'from the inner plate. The assembly on the frame is removable therewith as a unit through the open side ot the casing, the winding spindle disengaging from the aforementioned bore 43 in the casing in the removal of the traine assembly whereby the frame assembly is accessible and whereby the 'casing is simple in construction and .tree Jfrom a plurality of eEsT AvAiLAeLE com formations machined to close limits and whereby the frame assembly is readily accessible for assembly and repair and mainly comprises conventional easily made parts, which are conveniently assembled and conducive to economical quantity production.

The detachable front piece^5 isprovided with a rearwardly extending portion comprising a portion 60 rearwardly spaced from the main portion of the front piece and connected to the main portion of the front piece by a semicircular marginal flange 61. See Figs. 7, 8, and 9. The portion 60 extends in front ot' the portion 1 of the casing and extends above and below the axis olf the front piece with vertically spaced portions 62 leaving the port-ion of the main portion of the front piece surrounding the axis thereof and the remaining portion thereof uncovered. The main portion of the front piece is provided with a rearwardly and forwardly extending lens aperture 63 disposed on an axis lying in a horizontal plane passing through the axis of the front piece, and a lens 64 of usual construction is screwthreaded therein. The rearwardly spaced portion 60 is provided with `a light aperture 65 alined with the lens. The portion 60 has the rear face thereof disposed in -a vertical transverse plane and secured thereagainst is a vertically extending front film face guide plate 66 provided with a light aperture 67 therethrough alined with the lens 64. Avertically extending stationary edge guide rail 68 is secured against the rear face otthis plate at the inner side edge of the plate by headed screws 69 which also secure this edge or the plate to the portion 60 by pass- -ing through apertures in the guide rail and plate and screw-threading into the port-ion 60. The outer side edge portion of the plate 66 is provided with an intermediate lateral extension 71 which is secured to the portion 60 by a pair of vertically spaced headed screws 72. A vertically extending outer edge guide rail 73 embraces the extension 71 ot the plate 66 with an intermediate vertical slot 74 therethrough and engages in a vertical slot 75 formed in the portion 60 at the outer edge ot' the main portion of the plate 66 and is yieldingly pressed inwardly by a bow spring 76 held in a recess in the portion 60 by the extension 7l whereby to accommodate film of varying width, the rail 78 projecting rearwardly of the rear surface of the plate 66 to guide a film 7T in the guide. A rear lilm face guide member 78 yieldably pressed forwardly against the film completes the intermittent feed film guide, the member 78 being carried in a manner hereinafter described.

A stud 81 is secured to the front piece 5 and extends rearw-.idly therefrom on the axis thereof, and revolublv mounted on this stud is a bored cani member 82 provided with lill? an intermediate enlarged disk formation npon the rear face of which is formed a rearwardly facing face cam 83 and provided with a radial cam 84 immediately to the rear of the face cam. See Figs. 7, 8, and 9. This cam member is disposed to the inside of the aforementioned guide between the aforementioned vertically spaced portions 62 which are spaced longitudinally of the guide to the 'f inside thereof. A pair of spaced and alined studs 85, disposed on a vertical axis parallel to the path of the lm in the guide and to the inside of the inner edge of the film 1n the guide and intersecting the axis of the cam member and disposed respectively above and below the cam member, are secured in vertically aiined grooves 86 formed in the rear faces of respective portions 62 by headed screws 8T screwthreaded into respective portions 62 and overlying the grooves. A shuttle plate 8S is disposed in a vertical plane immediately to the rear of the face cam 83, and has reduced upper and lower end portions disposed centrally with respect to the main portion of the plate, the extreme ends 89 of which are turned laterally to the rear out of the plane of the plate at right angles thereto. These ends 89 are bored coaxially o'n an axis extendingin parallelism and in central relation with the main portion of the plate, and the studs 85 engage respect-ive of these bores whereby the shuttle plate is mounted for pivotal movement on the stud axis and for movement therealong. The shuttle plate 88 is provided With a central aperture 91 elongated transversely of its pivotal axis and forming opposing surfaces extending transversely of the pivotal axis in intermediate relation with the studs. The radial cam 84 is engaged in said aperture 91 and operates upon said opposed` surfaces to effect reciprocating film feeding and return movement of the shuttle plate along the studs 85 during rotation of the cam member. The shuttle plate has. a pair of forwardly projecting cam engaging projections 92 thereon disposed on opposite sides of the pivotal axis thereof and arranged cent-rally and disposed on opposite sides of the aperture 91, which projections are engaged by the face cam 83 to effect oscillating film engaging and disengaging movement of the shuttle plate during rotation of the cam member and to limit rearward movement ot' the cam member. The shuttle plate lies in front of the front face guide'plate 66 and is provided with an arm 93 disposed in the plane of the main portion thereof and extending therefrom across in front or the front face guide plate and below the aperture 6T therein. and this arm is provided with a pair of rearwardly projecting-film perforation engaging teeth 94 which are spaced transversely of the path of the film in the guide and extend through transversely spaced' eEsT AVAILABLE coll longitudinally extending slots 95 in the front face guide pl'ate to engage marginal perforations in the film in the guide for intermittently feeding the same. The portion of the front piece is cut away as designated at 96 to clear the shuttle plate. and the arm thereof. The cams 83 and 811 are arranged so that a closed` path' intermittent lnrfeeding movement of the shuttle plate is effected during rotation of the cam member S2, each of the cams permitting movementV of the shuttle plate by the other cam. The face cam 83 is arranged to maintain controlling relation with both cam projections 92 throughout the cycle of the mechanism. The cams 83 and 84 are arranged to intermittently feed the film downwardly with counter-clockwise rotation of the cam member 82 in Fig. 8.

The intermittent feeding-mechanism hereinabove describedis described. and claimed per se in my co-pendingapplication, Serial No. 572,169, tiled July l, 1922, for improvement in motion picture camera and the like.

A gear 97 is formed on the rear end of the cam member 82, and meshes with the crown toothed gear Bf'carried by the frame whereby the cam member is driven from the power spring device.

A revolving light shutter 98 is secured' on the cam member 82 immediately in front of the enlargement-of the cam member and is disposed in a pla-ne in' front of the shuttle and the portion 60 of the front piece 5 and to the rear of the main portion of the front piece and cuts olf the light from the lens 64 just in front of the light aperture 65. The shutter is timed to expose the ilm duri-ng each rest period thereof in the guide and to cut oi the l-i ht during movement 'of the lm in the gui e as is usual. l

A stud 99 is secured to the front piece 5 and extends rearwardly therefrom in parallelism with the stud 8-1 and is disposed on the side thereof opposite that on which the guide is disposed'. Revolubl'y mounted on the stud 99 i's a bored hub 101 which is retained thereon by a headed screw' 102 screwthreaded into the 'rear end of the stud. A centrifugal governor Wheel, comprising a concentrically bored cup shaped body member 103 havin-g oppositev slots 104 cut partially therea'cross and forming segment portions 105` secured at one end to the remainder of the body member by connecting rim portions 106. of relatively small cross section and weights 107 secured on the inside of' said segment portions, is mounted by means of its bore uponA the hub 101 immediately in front of forwardly facing shoulder 108 on the hub and is frictionally driven from the hub. by means of a lcoiled comp-'ressior'r spring 109 encircling the hub in front of theweb of theA wheel andfabuttingthe web 4of the wheel and a nut 111 screw threaded on the for- 1,620,726 BEST AVAILABLE Cop ward end of the hub whereby the-wheel is frictionally driven from the hub. vThe rim portions 106 are somewhat resilient and permit the weighted segment portions 105 to swing outwardly under centrifugal force and draw the segment portions inwardly with decrease of the centrifugal force.

The stud 99, hub 101, screw 102, and the governor wheel are disposed in front of the plane of the shutter 98, the governor wheel being disposed within a circular rearwardly facing recess formed in the front piece and disposed concentrically with the stud 9 9. A bell crank lever 112 is pivoted at 113 on the rear face of the front piece 5 below the stud 81, and one arm of this lever extends below the governor wheel and has a block 114 of friction material secured to its'outer end which lies in an extension of the recess in which the governor wheel is disposed and is disposed to bear against the periphery of the governor wheel for .controlling the speed thereof, the weighted segment portions 105 acting as hereinbefore described and cooperating with the block 114 to maintain a uniform speed in an obvious manner.- The outer end of the bell crank lever 112 is engaged with an eccentric portion ofl a stud 115 pivotally mounted in the front piece 5 and having itsfrontend vexposed at the front side of the front piece and slotted, see Fig. 1, whereby the governor may be adjusted to vary itscontrolled speed.

A large spur gear is secured on the cam member 82 immediately in front'of the shutter 98 and meshes with a small spurgear formed on the rear end of thehub. 111 whereby the governor is driven fromy the cam member 82 by multiplying'gearing to control the speed'at which the camera 1s ,operat' ed by the power spring device'.

Th" enlargement of the caml member 82 has a stop formation 118 ,thereon immediately to the rearl of the shutter 'and forward of the face cam' 83- which isfengaged by a stop lever 119 which is mountedforrpivotal movement by means of a forwardly extending stud 1 21 journaled in bearings on the plate 13, see Fig. 6, and on the front end of which stud the stop lever is secured. The stop lever 119 lies in front ,of the portionO of thefront piece and it` and the stud 121 are removed therewitln The stop lever 119 falls in front of the stop formation 118 to stop rotation of the cam member 82 to stop opera-tion of the camera, as shown in Fig. 8, andl is pivoted out of engagement with the stop formation to permit operationof the camera, the. stop formation being timed to stop the cam member 82 with the shutter cutting olf the light as shown in Fig. 8. The stop lever is manually controlled by a spring push button device comprising a vertically disposed push stud 122 mounted in a vertical bore in the circular front end of the casing and extending eXteriorly of the casing and having a circumferential groove 123 at the lower end thereof which is engagedby a rearwardly'y extending lug 124 on the stop lever 119, and a coiled compression spring 125 encircling the push stud and abutting a ldownwardly facing shoulder on the push stud and an upwardly facing shoulder in said vertical bore to normally push the stud upwardly and move the stop lever into stop formation engaging po-sition; A weighted lock' lever 126 is pivotally mounted on a stud127l secured to the casing at the rear of the front piece and is provided with a lock formation 128 adapted to engage with thc adjacent end of the stop lever 119 when it is in itsionerating position to hold it in this position. The said adjacent end of the stop lever 119 'is provided witha cam surface 129adapted to engage the upwardly facing surface of the lock formation `128 to throw the-lock lever 126 out of locking position whereby to permit movement,` ofthe stoplev'er to stopping position by downwardmovement of the push stud to move the weighted' levero ut of locking position and aquickreleaseof the push stud to permit` the spring 125 vto move l sa-id adjacent end ofthe stop lever pastlthe lock formation 128 before the lock lever moves into locking positionbyr'eason ofthe weight thereof.' Thelck lever permits lre'nfioval of the stop lever'with'the front'piece. Y Th film sprockets 32 are disposed in back of the -intermittent feed guide and are adj acently spaced longitudinally of the same and are in filinjfeeding aline'ment therewith.

A horiz o ntal';V carrying bar;131'havi`ng its main portion'y flat and l c lispbsed in4 a horizontaLplane extendsfrom the, rear of the guide rearwardlyontheoutside of the 'plate 13 between the sprockets 32j andfilm spools 1 8, and islmountedon the plate 13by means of headed( studs `13 2 extending through counterb'ored transverseholes 'through the bar and having circumferential; grooves 133 adjacent the ends' of their Shanks-engaged in forwardlyv and rearwardly 'extending slots 134 through the plate 13, spring washers 135 under theheads o f the studs serving to` hold the bar securely againstthe outer surface of the plate13l See Figs. 3, 5, 6,and 7. Thus the bar 1314 is mounted forl forward and rearward movement, andthe front slot 134 is open at its; front end and the rear slot 134 is widened at its front end to permit removal and assembly of the bar on the plate 13. The bar 131V is provided at its front end with a vertical portion 136 disposed in a transverse plane ,and extending above and below the` main portion of the bar. The aforementioned rear film face guide member 78 of the intermittent feed film guide is formed orf-an elongated rectangular plate having the ends thereof doubled back rearwardly, as shown at 137, see Fig. 5, and embracing respective ends of the portion 136 and permitting limited forward and rearward movement of the Aguide member 7 8 with respect to the portion 136. A headed stud 13,8, intermediately disposed with respect 'to the member 78, extends forwardly through a forwardly connterbored borein the portion 136 'for' sliding movementand has the en d of its shank riveted to the guide member 78,. t'hus reventing transverse movement of the guide member. A coiled cornpres'sion sprintf '13 9 -encirclcs the shank of the stud 138 'and abats-the member 78 and the bottom ofthecounterbored lportion of said bore with its opposite ends to urgethe. member-78 to the forwardendof its movement on the'portion 136. When the bar l1 31 is in a rearward position the intermittent feed film 'glid iis @pen fOr-the insert-ion of the film therein, and when the bar 131 is in a forward `posiitilc'iii the film guide is closed and the Spring 13.9 fesses the guide member 78 l-againsf.' the lm in the guide toretard movement of the film in the guide whereby to hold-thesame against accidental movement'whenthe slmttle`teeth94 are outof engagement' with the ner-forations in .the film. The bar is maintained its forward position when the cover is positioned on the casing by an inwardly extendinglug 141 on the cover engaging in back of the bar. See Fig. 7.

A Apairof guide members 142 are pivotall'yinounted on the Outside of the lonter plate 13,'by means of headed screw studs 143, on axespar llel with the axes of the sprockets 82 and spaced longitudinally of the intermittent feed guide above and below the sprocket axes for movement into and out of film-retaining position. See Figs. 3 and 5. Thes e gnide members 142 are'provided withl transversely disposed guide portions 144 in frontof respective sprockets 32 for retainingportions of thefilm '77,.l'eading' from opposite ends of the feed guides. engaged with respective sprockets with the film portions extending from the ends of the feed guide in rearwardly curved compensating loops and then in front o f respective adjacent sprockets and rearwardly therefrom between'the sprockets to respective film spools 18, as shown in Fig. 3. W'hen the guide members 142 are in a rearward position, as shown in`` Fig. 3, the guide port-ions 144 are in filmretaimng position, and when the guide members 142 are m a forward position, as shown in Fig. 5, the guideportions are out of film retaining position for the removal or lacing of the lrn on the sprockets. The guide members 142 are moved into, and out of film retaining position respectively with vfeed .guide closing and opening movements of said bar 131 in the following manner. Each guide member 142 is provided with an arm 145 which extends inwardly of the film path and exterior of the plate 13 toward the bar 131 and terminates in a rearwardly extending cam portion 146 underlying the portion of the bar 131 in'nnediately to the rear of the sprockets 82, the bar being spaced from the plate 13 at this portion and extended upwardly and downwardly inwardly of the film path. See Figs. 3, 5 and 7. The cam portions 146 oppose each other, and mount-- 'ed on the bar 131 is a cam roller 147 which is disposed between. the. cam portions 146 and cooperates. therewith to move. thel guide n'ienibers 142 into film retaining position with forward increment of the bar 131 from the open feed guide position shown on 'F 5 to 'the closed feed guide position shown in Figs. 3 and 7. A pair of cam pins .14S are'mounted on the. bar 131 and are vert-i- `cally spaced above and below the cam roller 147, and the portions 146 are confined in respect-ive spaces between the cam roller 147 andthe Scam pins 148, whereby in addition to being moved into film retaining position with `forward feed .guide closing movement of the bar 131, the guide members 142 are moved out of film retaining position with rearward movement of the bar 131 from the closed feed guide position shown in Figs. 3 and 7 to the open feed guide position shown in Fig. 5. Thus thc bar 131 controls the opening and closing of the feed guide and the movement ofthe. guide members 142 into and out of film retainingposition whereby to simplify the lacing and unlacing of the film, the lug 141 on the cover, engaging in back of the bar 131 as hereinbefore described, maintaining the guide members 142 in film retaining position when the cover is positioned on thi` casns- The hereinbefore described main portion of the bar 131 extending between the sprockets 32 serves to guide the film portions between the sprockets and rearwardl '\v thereof, the film portions lying respectively above and below the bar` and the bar has wide channels 149, alincd with the picture portion of the film. formed in the film guiding surfaces thereof whereby only the edge portions of the film are engaged for obvious reasons. Sec Figs. 7 and 12.

The film guide surfaces of the bar 131 are disposed with relation to respective sprockets 32 and the sprockets are arranged to stop, when the stop lever 119 engages the stop formation 11S, with the teeth thereof adjacent the bar disposed out of th plane of the axes of the sprockets, so that the film can be moved edgewise between the sprockets and bar for lacing and milaning the film. See Figs. 5 and 12.

It will be observed that a simple, short and natural film path is provided, that the itl() (ill readme devices relating thereto are compactly arranged, that lacing and unlacing of the film is a simple operation, and that the film cannot become disarranged once it is laced and thereof in a compensating loop and then upwardly in front of the lower sprocket 32 and over the same and 'rearwardly to the lower orrewindspool 18 uponwhich it is rewound. See' Fig. 3. The lower or rewind spool218 'is' driven to rewind the film by a spur gear 151 disposed between the plates 12 and 13 and-formed on the hub 24 which drives the lower'spindle 17 through the frictional driving'- connection hereinbefore described, and' a spur gear 152 carried by the ,frame between the plates 12 and 13 thereof 'and-disposed on a transverse Aaxis and -meshing with the gear 151 and the hereinbefore described gear 58. See Figs. 6, 7 and 11.

4It will be observed that the major portion of the mechanism is carried by the detachable 'front piece 5 and the detachable frame formed'by the plates 12 and 13, and that the mechanism carried thereby are removable therewith from the casing. This arrangement provides accessibility' for assembly and repair, permits of a simple casing which is free from a.plurality of formations machined to close limits, permits of a com act design, and tends toward ease of manu acture.

Rotatably mounted on a transverse axis in abore through the upper wall portion 3 of the casing is an exterior calibrated footage recording dial 153 which cooperates with a mark, not shown, on the exterior of the casing. Disposed in a concentric recess in the inner face of this wall portion and secured to the dial by means of an axially disposed headed screw stud 154 and a pin 155 is a peripherally ratchet toothed wheel 156. See Figs. 6 and 11. Extending between and carried by the plates 12 and 13`on a transverse axis, parallel with the axis of the dial and ratchet wheel, and spaced below the ratchet wheel is a shaft 157 upon which a gear 158, disposed between the plates 12 and 13, is secured. The gear 158 meshes with the gear 55 whereby the shaft 157 is driven with the film feeding devices, and formed on the shaft 157 adjacent the inner face of the plate 13 is an eccentric 159. A pair of oppositely toothed ratchet bars 161 have transverse holes in their lower ends in which the eccentric 159 is engaged and extend upwardly therefrom on the inside ofthe plate 13 and essi' AVAILABLE coP. '7

in slots formed in the inner face of the upper wall portion 3 and embrace the ratchet wheel 156 therebetween with the ratchet teeth thereof engaging the teeth of the wheel. A tension spring 162 has its ends engaged with respective bars 161 and press the same against the wheel. As the eccentric 159 is `rotated the ratchet bars are reciprocated and the ratchet wheel is rotated thereby at a greatly reduced speed, each ratchet bar holding the ratchet wheel against reverse rotation as the other ratchet bar ratchets over the teeth of the wheel on its non-feeding stroke. It will be observed that a great reduction of angular movement between the f ratchet'wheel and the eccentric shaft 157 is effected, and that the mechanism is quite simple and permits the removal of the frame formed of the vplates 12 and 13, the ratchet bars being removed with the frame.

Formed integrally with the aforementioned cover 7 is an exterior rearwardly and forwardly extending tubular structure 163 disposed intermediate the top and bottom of the camera. Lens mounts 164 are removably telescoped in respective ends of the tubular structure 163 and are provided with central light openings 165, the opening of the front lens mount being rectangular to correspond with the light aperture 67 of the front guide 'plate 66, hereinbefore described, and the opening of the rear lens mount being a small circular one. See Figs. 1, 2 and 7. Lenses 166 forming a sighting combination are mounted on respective lens mounts 164 iuteriorly thereof, and the sighting device so formed -is related with the camera lens G4 in its exposure of the film in the feed guide that the field seen through the sighting device is substantially the same as that prcjected upon the film through the camera lens.

The tubular structure .163 is adailited to he grasped by one hand of the operator in holding the Camera for operaion with one eye of the operator sighting through the sighting device, and the hereinhefore descrita-.il exteriorly accessible push stud is disposed to be operated b v a finger of the other hand of the operator in holding the camera for operation as above described. Thus the camera is conveniently heid and operated with the operator sighting continuously during the taking of pictures.

The lower spindle 17 is preventief] .from

rotation in a. direction to unwind the film on 'f lower spindle 17 in the direction to rewind the film, i. e., clockwise in Fig. 5, but prevents rotation of this spindle in the opposite direction by reason of the plate 167 cramping against the spindle by reason of the eccentric disposition of the surface 169.

While I have herein shown -and particularly described the preferred embodiment of my invention I do not wish vto be limited to the precise details of construction shown as changes may readily be -made without departing from the spirit of my invention, but haring thus described my invention l claim as new and desire to sec-ure by Letters Patent the following:

Claims:

l. A motion picture camera including an enclosing casing open at one side, a frame comprising plates secured together in spaced parallelism and removably secured in said casing inwardly of said open side and in parallelism therewith and removablethrough said open side, a power spring device carried on the frame on a transverse axis. and having the springthereof disposed on the outside of the inner plate thereof, and a multiplying gear train for driving from the spring device and comprising gears carried by the frame between the plates thereof.

2. A motion picture camera including an enclosing casing open at one side, a frame comprising plates secured togetherin spaced parallel-ism and removably secured in said casing inwardly of said open side in parallelism therewith and removable through said open side, a power spring-denice-carriedon the frame including a coiled p OAver spring disposed on the outside' O the-:inner plate of the trame on a transverse axis-and a winding spindle disposed on a transverse axis and extending outwardly tromv Said4 ignner plate toward the other side yof the-casing, said other side of the casing being provided with a. bore therethrough whereby the spindle is accessible for winding, andamultiplying gear train or driving from the spring device comprising gears disposed on transverse axes and carried by the frame between the plates thereof.

3. A motion picture camera including an enclosing casing open at one side, a frame comprising two plates secured together in spaced parallelism and removably secured in said casing inwardly of said open side and in parallelism therewith, a winding spindle carried by the trame on a transverse zaxis and extending outwardly of the inner plate, a coiled powerspring disposed on the outside ol? the inner plate and having its inner end secured to said spindle and its othere-Ild secured to said frame, a multiplying gear train comprising gears carried by the'frame and disposed between the plates thereof on transverse axesiandinclud-ing a primary gear disposed coaxially with the spindle, an automatic one way driving connection for driving the primary gear -from the spindle and permitting independent rotation of the spindle in the direction towind the spring,

and sto-p gearing carried by the frame and connected with said spindle.

4. A motion picture machine including an enclosing casing open at one side, a frame comprising two plates secured together in spaced parallelism and removably secured in said casing inwardly of said open side and in parallelism therewith, the inner plate being provided with a centrally disposed b ore tberethrougl-1, a eonccntlicluy bored hub p ncmber ionrnaled -in said bore and extending 'from both sides oi the inner plate, a hollow spindle j onrnaled in the bore ot' said hub n xcn'rbcr and extending outwardly f IOlll both ends o't the saine, a bearing stud secured on the outer plate and. engaging the bore O the spindle. an exterior cylindrical flange on the spindle extending from Athe spindle at the outer end of the -hub member over the hub member in spaced relation therewithtoward the innerplate, a coiled power spring disposed on the outside ofthe inner plateand having its inner end secured to. said flange and its outer end secured to the frame, va spring brake coil disposed in the space 'between the flange of the spindle andthe -hub member and secured to one of-them and lien- Sioned against the other toforin a one way driving connection therebetween whereby to permit independent rotation of the spindle in the direction to wind the power spring, a multiplying gear train comprising gears carried by the frame and disposed between the plates thereof on transverse axes and including a primary gear ISecured te Said hub member, Said having a bere through the other side thereof, said spindle engaging in said bore for rotation, and a clutch -ormation in the bore of the spindle for winding the Same.

5. A motion picture camera including` an enclosing. casing open at one side and-having the portion adjacent the openE side vertically elongatedfand forming an intermediate outwardly facing surface \\'itliii .1 the casing, a, frame removably secured inV the easing against said surface, and operating mechanism including gearing mouned on said frame and disposed in the portion of the enclosure of the casing inward of said surface.

'6. A motion picture machine including an enclosing casing open at one side and havingt-lie portion adjacent the open side vertically elongated above and below the adjoining-*portion ther-'ect and forming an intermediate outwardly facing surface within the casing. a traine comprising plates secured together iu spaced parallelism and barring tbe'outcr plate thereof extending vertically abone and below the inner plate and detaclfiablysecured against said surface with llll) 1,620,726 BEST AVAILABLE COP.

the inner plate disposed within said adjoin-` ing portion` a paiiof revoluble film spools removably carried by the frame on transverse axes and disposed in vertically spaced cdgewise relation outwardly thereof, devices for feeding and exposing a film in a patin outwardly of the frame, and gearing carried by said frame between the plates thereof for driving said feeding and exposing devices and one of the film spools.

7. A motion picture cainera-including an enclosing casing open at one side and having the portion adjacent the open side verticallyelongated above and below .the adjoining portion thereof and forming an intermediate outwardly facing surface within the casing, a. frame comprising plates secured together in spacedparallelism and having the outer plate thereof extending vertically above and below the inner plate and detachably secured against said surface with the inner plate disposed within said 4adjoining portion, apair of vertically spaced transversely disposed film spool spindles carried by the frame and projecting outwardly from the outer plate thereof, devices .for feeding and exposing a film in a path outwardlyof saidframe, a

power spring'y device carried by the frame including a power spring disposed on a transverse axis von the outside of said inner plate, and gearing including a -multiplying gear train and carried by the frame between the plates thereof and comprising spur gears disposed on transverse axes for driving said feeding and exposing devices and one of said spool spindles from the power'spring device.

8. A motion picture camera including an enclosing casing provided with front and side openings, a front piece detachably secured to the casing and closing the front opening thereof, a frame removably secured in the casing and removable through said side opening, devices for feeding and exposing a film including a revoluble member carried by said front piece, and gearing carried by said frame for driving said revoluble member.

9. A motion picture camera including an enclosing casing provided with front and side openings, a front piece detachably secured to the casing and closing the front opening thereof, a frame removably secured in the casing and removable through said side opening, devices for feeding and expos. ing a film including revoluble members respectively carried by said front piece and frame, and a disengageable driving connection for operating said revoluble members in unison.

l0. A motion picture camera including an enclosing casing provided with front and side openings, a front piece detaehably secured to the casing and closing the front opening thereof a removable cover closing .said side opening, a frame removably sedriving said revoluble members in unison.-

. 11. A motion pictureI cameraincluding an enclosing casing provided with vfront and side openings, a front piece detachably se- .eured tothe casing and closing the front opening thereof, a frame removably secured in the casing anddis osed inwardly of the open side thereof, an intermittent film .feeding device including a revoluble member earried 'by the front piece and disposed on a rearwardly and forwardly extending axis inwardlyof the open side'of the casing, a shutter mounted on said revoluble member,

.a constant film -feedingdevice carried bv said lframe including y a second revoluble lmember disposed on a transverse axis, and means for driving said revoluble members in unison. including a gear on said first Amentioned revoluble member and a crown .toothed gear carried by said frame on a transverse axis and meshing withsaid first mentioned gear. i

.12. motion picture camera including an enclosing casing provided with front `and side openings, a front piece detachablv secured to the casing and closing the front opening thereof`- a. frame comprising plates .secured together in spaced parallelism and removably secured in said casing inwardly of s aid open side in parallelism therewith. an intermittent film feeding device includL in g a revoluble member carried by the front piece and disposed on a. rearwardly and forwardly extending axis, a shutter mounted on said revoluble member, a gear on said revoluble member` a pair of verticallv spaced constant feed film sprockets carried by said frame and disposed on parallel transverse axes, gears on the inner ends of said sprockets extending in the space between said plates, a gear carried by the frame between the plates thereof and meshing with said last mentioned gears, and another gear secured with this gear and disposed between said plates and meshing with said first mentioned gear.

13. motion picture camera including an enclosing easing provided with front and side openings, a front piece detachably secured to the casing and closing the front opening thereof, a frame comprising plates secured together in spaced parallelism and removably secured in said casing inwardly of said open side in parallelism therewith, an intermittent film feeding device including a shuttle carried by the front piece and a rev;

o luble cam member carried by the front piece and disposed on a rearwardly and forwardly extending axis. a shutter mounted on said cam member, a gear on the rear end of said cam member, a bracket secured on said outer plate and extending between said plates in adjacent spaced relation with the outer plate, a pair of transversely disposed vertically spaced parallel studs secured to said bracket and extending outwardly therefrom, said outer plate being provided with relatively large openings through which said studs ass, a pair of constant filni feed sprockets revolubly mounted on respective studs. gea-rs Qn the inner ends of said sprockets extending inwardly of said outer plate, a gear carried by the frame on a transverse axis betweenthe plates thereof and' meshing with said last mentioned gears, and a crown toothed gear secured with said last mentioned gear -and meshing with s aid first mentioned -gear.

lll. A motion picture camera including an enclosing casing provided with front and side openings, a front piece det-aohably secured to the casing and closing the front opening thereof, a frame removably secured in the casing, devices for intermittently feeding and exposing a film including a. revoluble member 'carried by said front piece, a speed governor carried by said frontl piece for controlling the speed of said revol'uble member, a manually releasable stop device including a stop formation on said revoluble member, a

0 )ower s rin(T device carried bv said frame. C

and gearing including a multiplying gear trainand carried by said frame for driving said feeding and exposing devices from the spring device.

' 15. A.' motion picture camera including an enclosing casing provided with front and side openings, a front piece det-achably secured to the casing and closing the front opening thereof, a frame remi ably secured in the casing and disposed inwardly of tbc open side thereof, devices for intermittently feeding and exposing a lilm in av path outwardly of said frame including a revoluble cam member carried by said front piece on a rearwardly and forwardly extending axis. a centrifugal spe-ed governor carried by said front piece on an axis parallel to said revoluble cam member. multiplying gearing for driving said speed governor fromv said revolnble cam member. a. ,manually releasal'ilc stop device including a. stop formation ou said revoluble cam member` a power spring device carried by said frame. and means for driving said feeding and exposing devices from the spring including a second revolnble member carried `by said frame for drivingr said first mentioned revoluble cam member.

16. A motion picture camera including an enclosing easing provided with front and side openings, a front piece detachably se- BEST AVAILABLE com cured to the casing and closing the front opening thereof, a frame comprising two plates secured together in spaced parallelism and removably seemed in said casing inwardly of said open side in parallelism therewith, an intermittent tilm feeding dc.- vice including a revoluble member carried by the front piece and disposed on a. rearwardly and forwardly extending axis. a

shutter mounted on said revoluble member.

a centrifugal speed governor carried by said front piece on 4an axis parallel to said revoluble member. multiplying gearing for driving said speed governor from said revoluble member, a manually releasable stop device including a stop formation on said revoluble member, a gear on the rear end of said revoluble member, a second gear carried on the frame between the plates thereof and disposed on a transverse axis and meshing with said first mentioned gea-r for driving the same, a power. spring device carried by said frame on a transverse axis and including a power spring disposed on the out-side of the inner plate thereof, and a multiplying gear train carried by said frame and comprising gears disposed between said plates on trans- 'verse axes for driving said se'cond gear from the spring.

17. A motion picture camera including a detachable Vfront piece, an intermittent film feed guide including a rearward-ly spaced apertnred front face guide plate carried b v the front piece, means carried on the front piece for intern'iit-tently feeding a film in said guide including a reroluble cam memn ber disposed on a rearwardly and forwardly extending axis .to one side of the guide. and a revoluble light shutter secured with tbc cam member and disposed in a plane in front of said guide plate.

Y18. A' motion picture camera including a detachable frontpiece, an intermittent film feed guide. including a rearwardly spared apertured front face guide plate carried by the front piece. a shuttle carried b v tbe front piece and movable on and along an axis to one side and extending longitudinally of the guide and extending in front of said guide plate with a toothed film ongaging portion for feeding a lilm in said guide. a rerolublc cam member carried by 'said front piece and disposed on a rearwardly and forwardly extending axis disposed lo said side of the guide for opcraliui'.' said shuttle on and along itsl axis lo feed the lilm and a rcvolnble'liglit shutter sccnred lo the cam member and disposed in a plane in front of said shuttle.

l). A motion picture camera including a detachable front. piece provided with a rearwardly extended portion. an intermittent l'ilm feed guide including an apertured front face guide plate mounted on said rearwardly extended portion, said rearwardly extended 'Ill lOtl

llt)

portion including portions spaced longitudinally of vthe guide to one side thereof.l a pair of spaced and alined studs secured to respective lof said spaced portions on an 4axis 'to said side and extending longitudinally of the guide, a shuttle plate disposed similar to said guide plate and mounted on said studs for movement on and along the axis thereof and extending in front of said guide plate with a toothed film engaging portion for feeding a film in said guide. a revoluble cam member carried by the front piece on a rearwardly and forwardly extending axis between said studs for operating the shuttle on and along its axis, and a rcvoluble light shutter secured to'the cam member and disposed in a plane in front of said shuttle.

20. A`motion picture camera including a detachablefront piece, intermittent film feed ing mechanism including a. rcvoluble memher carried on said front piece 'and disposed on a. rearwardly and forwardly extending axis,l a -revolving li ht shutter secured to said rev'oluble mem er, a speed governor carried by the frontpiece for controlling the speed of said revoluble member, a stop device 'including a stop formation on said revoluble member, and a gear onsaid revolub'fle member'whereby it is driven.

21..A motion picture 'camera including a detachable front piece, a pair of spaced rearwardly extending studs Amounted thereon, intermittent film. feeding'mechanism including a film` feeding shuttle carried by said front piece anda bored cam member revo# lubly mounted on one of said studs for operating the shuttle, arevolving light shutter secured to said cam member, a centrifugal speed governorincluding a bored 'r'evolving member` revolubly mounted 'on the other stud, a large spur gear secured to, the cam mem ber, a small spur gear. secured to said recvolving member o f the governor andfmeshing with the 4large gear,"a stopjdevice including a stop' formation on'said c'arn member, and a gear on'the rear end of said cam member whereby itis driven'.

22. `A motionpicture camera including an intermittent film feed guide, a pair of conlstant feed film sprockets rotating' in the same direction and disposed in back of the guide and adjacentlv spacedlongitudinally of the guide for feeding a film to and from respective ends of the guide, a pair of guide members extending in front 0f respective sprockets for retaining portions of a film, leading from opposite ends of the guide, engaged with respective sprockets with the film portions extending from the ends of the guide in compensating loops and then in front of respective sprockets and rearwardly therefrom between the sprockets and movable into and ont of film retaining position, a carrying member carrying the rear film sEsT AVAILABLE coriA 11 the sprockets and movable forwardly and rearwardly to close and open the feed guide, and means for 'moving the guide members into and out of film retaining position respectively with feed guide closing and opening movements of said carrying member.

23. A motion picture camera including an intermittent film feed guide, a pair of consfant feed sprockets rotating in the same direction and disposed in back of the guide and adjacenflyspaced longitudinally of and in film feeding alinement with the saine. a pair of guide members extending in front of respective sprockets` for retaining a film thereon and pivotally mounted on axes parallel with the sprockct'axes and spaced longitudinally of the guide above and below the sprocket axes for movement into and out of film retaining position, a carrying member carrying the'rear film face guide portion of the feed guide and extending rearwardly .therefrom between and rearwardly of the lsprockets and adapted4 for guiding the film guide members extending toward the carrying member andl having'opposinig cam portions, and meanscooperating with said cam portions to 'effect movement of said guides into and out of film retaining position re' spectively with feed guide closlng and opening movement of said carrying member including a member mounted on said carrying member 'and disposed between and engaging both cam'portions.

24. A motion picture camera including 'an intermittent film feed guide, a pair of constant feed sprockets rotating in the same direction and disposed in back of the'guide and adjacently spaced longitudinally of and'in film feeding alinement with the same, a'pair of guide members extending in front of respective sprockets for retaining a film thereon and pivotally mounted on axes parallel with' the sprocket axes and spaced longitudinally of the guide above and below the said cani portions in respective spaces therebetween and cooperating with said cam portions to effect movement of said guides into and out of filin retaining position respec tively with feed guide closing and opening movement of Said carrying member.

25. A footage recording device including L revoluble periphcrally toothed ratchet wheel, a driven eccentric disposed on au :mis spaced from said ratchet wheel and parallel .to the asis thereof, a, ratchet bar provided with a transverse hole/engaged by said eccentric for operating the bar, and a spring pressing said ratchet bar against said ratchet wheel.

26. footage recording device including a rei-'oliible ratchet Wheel, a driven eccentric, a. pair of oppositely toothed ratchet members operated by sai eccentric and enffagino the teeth of Ythe ratchet Wheel with thir teetth at respective opposite points, and spring means pressing the ratchet members against the Wheel 27. footage recording deyice. including a revouble peri'herally toothed ratchet yvheel, aidriven eccentric disposed on an axis spaeed from the Wheel and parallel to the axis thereof, a pair ofi oppositely toothed ratchet bals provided withtransverse holes in @me the, @scent-ri- S- itsese-d,Y and eX- tending :from he eccentric and'embracing the .ratchet xv eel therebetween with the ratchet teeth thereof engaging the teeth of the Wheel, and a spring Pressing the ratchet bfijZfS e @inst the Wheel 8. motion picture carriera including an endosingfisvs' .Open atene Side, 21 frame. removably'l secured in said casing and re movable through said open side, a'revoluble ratchet Wheel carried by the casing, a driven eccentric carried by therarne, a pair of oppositely toothedA ratchet meiribeis carried .by the frame and Qnretsd by the eccentric and engaging -the teeth of the ratchet wheel with their teeth at respective opposite points, spring. rneans pressing the retchet members against the wheel, and a recording member on 'the casing 'operated by the ratchet wheel.

- A motion picture camera'includingan enclosing casing open at one side, a traine renloyably "secured in said casing and removable through said open side, a revoluble peripherally toothed ratchet ivheel carried by the casing on a transverse axis, a driven BEST AVAILABLE cor` eccentric carried the frame on a transverse axis spa-ced from the ratchet Wheel, a pair of oppositely toothed ratchet bars provided with transverse hoies in which the eccentric is engaged and ertending from the eccentric and einbracing the ratchet wheel therebetween withthe ratchet teeth thereof engaging the teeth of the wheel, and a tension spring having its ends engaged with respective bars and pressing the same against :the Wheel.

30. The combination in a motion picture camera of an enclosing structure including a -detachably secured cover forming one .side of the enclosing structure, an eiiterior rearwardly and forwardly extending tubular structure formed integrally fnith the cover and adapted to be grasped by the operator in holding lthe camera, lens inounts removably telescoped respective ends o f the tubular structure, and lenses forming a sighting combinationmounted on respective of said lens mounts.

3l. Thecombination in a motor driven motion picture camera of an enclosing struc.- ture, a sighting device including an'exterior rearwardly and :forwardly este ding tubuiar structure on the enclosing s ructuie and adapted to grasped by 'one'hand of the operator in holding the camera for opera? tion, 'and an exteriorly accessible control ineinber on the camera'for controlling the operation thereof and disposed to be accessible for operation'by a finger of the'other hand lof the operator inV holding the camera for operation. A

32. The combination in a spring motor driven-motion picture carriera of an enclosing structure including a'detalchably secured coi/fer forining .one side of the enclosing structure, a sighting device including an exterior rearwardly and forwardly entending tubular structure fmd lilegrally'iyith the cover and disposed intermediate the top and the bottom of lthe camera and adapted to be grasped by the Greater Ain heldlrfhe eemera for operation, and 4an exterioidy accessible push -stud on the earnerafor cont-rolling the operation thereoi and Adlspqsedto be`operated by afinger of the other hand of the operator in holding the camera 'for operation. i i

In \,\f'i,tn ,e. ss iy'hcreof, hereunto avltlix lny signature this 19th -day of September, 1923.

' ALBERT .Sr Hoiittl 

